package com.example.schoolenterprisealliance.html;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class HtmlText {
    /**
     * 过滤掉html标签的工具类
     */
    public static class Html {
        public  static String delHTMLTag(String htmlStr) {
            String regEx_script = "<script[^>]*?>[\\s\\S]*?<\\/script>"; //定义script的正则表达式
            String regEx_style = "<style[^>]*?>[\\s\\S]*?<\\/style>"; //定义style的正则表达式
            String regEx_html = "<[^>]+>"; //定义HTML标签的正则表达式

            Pattern p_script = Pattern.compile(regEx_script, Pattern.CASE_INSENSITIVE);
            Matcher m_script = p_script.matcher(htmlStr);
            htmlStr = m_script.replaceAll(""); //过滤script标签

            Pattern p_style = Pattern.compile(regEx_style, Pattern.CASE_INSENSITIVE);
            Matcher m_style = p_style.matcher(htmlStr);
            htmlStr = m_style.replaceAll(""); //过滤style标签

            Pattern p_html = Pattern.compile(regEx_html, Pattern.CASE_INSENSITIVE);
            Matcher m_html = p_html.matcher(htmlStr);
            htmlStr = m_html.replaceAll(""); //过滤html标签

            return htmlStr.trim(); //返回文本字符串
        }
    }
}
